DETECTION ASSAY FOR SARS-COV-2 VIRUS

DETECTION ASSAY FOR SARS-COV-2 VIRUS

Researchers at UCSF and the Chan Zuckerberg Biohub have developed methods to detect SARS-CoV-2 virus.

Clinical laboratory tests and point-of-care tests are needed for screening and diagnosis of individuals infected with SARS-CoV-2 virus. SARS-CoV-2 infection begins with viral Spike protein binding to the human surface receptor protein angiotensin-converting enzyme II (ACE2). As SARS-CoV-2 continues to spread around the world, there is an urgent need for new assay formats to detect viral antigens, such as the surface Spike glycoprotein.

Stage of Research

The inventors have developed a proximity-based split reporter detection assay for SARS-CoV-2 virus. The split reporter detection assay comprises a pair of fusion proteins that are used together to detect the presence of viral antigen. The reporter proteins form an enzymatically active protein complex when they associate in the presence of virus. The inventors demonstrate the utility an exemplary sensor, ACE2-Fc split reporters, for detecting viral Spike molecules on pseudotyped lentivirus expressing SARS-CoV-2 Spike glycoprotein.

Applications

  • Detection of SARS-CoV-2 viral antigens in patient samples

Advantages

  • Rapid viral antigen detection, without laborious wash steps

Stage of Development

Research – in vitro

Publications

Liu  I,  Zhou X, et al. Trimeric SARS-CoV-2 Spike interacts with dimeric ACE2 with limited intra-spike avidity. bioRxiv 2020.05.21.109157; doi: https://doi.org/10.1101/2020.05.21.109157

Related Web Links

https://pharm.ucsf.edu/wells

Keywords

Antibody, affinity reagent, biosensor system, Fc Domain, Diagnosis

Technology Reference

Chan Zuckerberg CZB-167F, UCSF SF2020-248

 

 

 

Patent Information:
For Information, Contact:
Garima Syal
IP & Corporate Paralegal
CZ Biohub
ip@czbiohub.org
Inventors:
James Wells
Susanna Elledge
Xin Zhou
Tanja Kortemme
Jeff Glasgow
Anum Glasgow
Irene Lui
Keywords:
Affinity Reagent
Antibody
Biosensor System
Diagnosis
Fc Domain